Loose and unsecured articles on or around helidecks.pptx
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Aug 27, 2024
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Language: en
Added: Aug 27, 2024
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1 8 th March 2016 LOOSE AND UNSECURED ARTICLES ON OR AROUND HELIDECKS Copy of Shell Aircraft International
LOOSE AND UNSECURED ARTICLES ON OR AROUND HELIDECKS 2 8 th March 2016 Background Loose/Unsecured articles and equipment are a recurrent issue on Shell operated Helidecks 4% of all incident reports (28% of all Helideck related incidents) across Air Transport in Shell relate to this subject .
LOOSE AND UNSECURED ARTICLES ON OR AROUND HELIDECKS 3 8 th March 2016 Target A udience Vessel Asset Managers, Offshore Installation Managers (OIMs) and Vessel Captains for platforms and vessels equipped with Helidecks; Asset Managers in Upstream, Downstream, Integrated Gas and Projects & Technology with responsibility and Shell Shareholder Representatives in Non-Operated Ventures with responsibility for any contracted and/or chartered helicopter operations support; Logistics M anagers and Aviation Focal Points with Aviation Safety risk in their portfolios . Helideck – is the landing deck/area for helicopters on ships, oil platforms, etc.
LOOSE AND UNSECURED ARTICLES ON OR AROUND HELIDECKS 4 8 th March 2016 Hazard Helicopters operating to offshore facilities and vessels produce downwash and wake turbulence that cause blown object and other hazards to personnel and aircraft on the offshore location. Downwash is the downward flow and change in direction of air deflected by the aerodynamic action of helicopter rotor blades (rotor disc) when in motion, as part of the process of producing lift . Wake Turbulence is turbulence which is generated by the passage of an aircraft in flight
HELIDECK SAFETY - LOOSE ARTICLES Related Incidents 2011 – 2016; Over 50 reported incidents in 5 years; this can be found in the Fountain Incident Management (FIM) system; Recent; May15, US Gulf of Mexico: The down draft from a Sikorsky S92 helicopter rotor wash, while landing on the helideck, displaced three empty Omega mobile fuel (tote) tanks, knocking one over on its side approximately 9 feet from its original position; 5 8 th March 2016
HELIDECK SAFETY - LOOSE ARTICLES Recent Incidents; Recent Nov15, US Gulf of Mexico : A CO2 fire extinguisher positioned 62 feet from the center of the helideck was blown over by S92 rotor wash striking the valve stem on the gate behind it causing the fire extinguisher valve to part. The extinguisher was propelled 20 feet across the deck . Other extinguishers were secured with safety cables and were not affected by rotor wash; 6 8 th March 2016
HELIDECK SAFETY - LOOSE ARTICLES 7 8 th March 2016 Recent Incidents; Recent Jan16, Brunei: During landing on Magpie 1 platform, one of the access panels came loose and got blown onto perimeter fencing. Upon inspection of the deck it was observed that several panels are not properly secured. The deck was closed, until such time as repairs can be made, and passengers moved to Magpie 3.
LOOSE AND UNSECURED ARTICLES ON OR AROUND HELIDECKS Lessons Learned Rotor downwash and wake turbulence can affect loose/unsecured items/equipment not only on the helideck but, for a considerable distance around it, including above and below deck; Hazard is not just downwash but also wake turbulence from blade tips which are hard to predict, they can settle on the offshore structure from passing helicopter and have same effect as downwash: Can change wind speeds up to 150mph Depends on helicopter size (rotor disc loading) Seems to be a lack of awareness from all concerned despite publicity and training; Insufficient Helideck procedures for checking loose and unsecured items/equipment on and around helidecks 8 8 th March 2016
HELIDECK SAFETY - LOOSE ARTICLES Next Steps Amend our operating standards to mandate that all equipment around the helideck is secure and that checks are made on a regular basis as well as immediately before aircraft operations; Secure or remove all loose equipment and material on the helideck and look for helideck and installation structure that may have been loosened during maintenance, by corrosion, or by failure of fasteners or welds; and Notify installation personnel of imminent helicopter operations and train them to control doors and hatches during use and to latch them closed when not in use. 9 8 th March 2016
HELIDECK SAFETY - LOOSE ARTICLES Next Steps Practice good housekeeping: Stop work in the vicinity of the helideck early enough ahead of the start of flight operations to secure all tools and materials; Promptly clean up loose particulate matter (e.g. blasting grit, paint chips, rust removal debris) which can cause an eye injury when blown by a helicopter; and Do not leave hazardous liquids (e.g. paints, solvents, fuels, adhesives) in open containers where they could be blown over or sprayed by a helicopter . 10 8 th March 2016
HELIDECK SAFETY - LOOSE ARTICLES Recommendations The following recommended procedures will be formalized through the Shell Group Requirements for Aircraft Operators (SGRAO) amendment process; they will be circulated as Notice of Proposed Amendments (NPAs) and then incorporated into the next revision of the SGRAO: Define an extended zone around helidecks which is subject to rotor downwash during flight operations; Put in place a system of documented regular inspections, particularly prior to aircraft operations, to check and the security of items/equipment within the extended zone ; and Removing or securing all loose or unsecured items/equipment within the extended zone. 11 8 th March 2016